40185154450 has 24 divisors (see below), whose sum is σ = 85422157632. Its totient is φ = 13777767120.

The previous prime is 40185154423. The next prime is 40185154469. The reversal of 40185154450 is 5445158104.

40185154450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40185154450² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57407014 + ... + 57407713.

It is an arithmetic number, because the mean of its divisors is an integer number (3559256568).

Almost surely, 2^40185154450 is an apocalyptic number.

40185154450 is an abundant number, since it is smaller than the sum of its proper divisors (45237003182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40185154450 is a wasteful number, since it uses less digits than its factorization.

40185154450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114814746 (or 114814741 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 40185154450 in words is "forty billion, one hundred eighty-five million, one hundred fifty-four thousand, four hundred fifty".